xref: /linux/include/uapi/linux/rtnetlink.h (revision 1a9239bb4253f9076b5b4b2a1a4e8d7defd77a95)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI__LINUX_RTNETLINK_H
3 #define _UAPI__LINUX_RTNETLINK_H
4 
5 #include <linux/types.h>
6 #include <linux/netlink.h>
7 #include <linux/if_link.h>
8 #include <linux/if_addr.h>
9 #include <linux/neighbour.h>
10 
11 /* rtnetlink families. Values up to 127 are reserved for real address
12  * families, values above 128 may be used arbitrarily.
13  */
14 #define RTNL_FAMILY_IPMR		128
15 #define RTNL_FAMILY_IP6MR		129
16 #define RTNL_FAMILY_MAX			129
17 
18 /****
19  *		Routing/neighbour discovery messages.
20  ****/
21 
22 /* Types of messages */
23 
24 enum {
25 	RTM_BASE	= 16,
26 #define RTM_BASE	RTM_BASE
27 
28 	RTM_NEWLINK	= 16,
29 #define RTM_NEWLINK	RTM_NEWLINK
30 	RTM_DELLINK,
31 #define RTM_DELLINK	RTM_DELLINK
32 	RTM_GETLINK,
33 #define RTM_GETLINK	RTM_GETLINK
34 	RTM_SETLINK,
35 #define RTM_SETLINK	RTM_SETLINK
36 
37 	RTM_NEWADDR	= 20,
38 #define RTM_NEWADDR	RTM_NEWADDR
39 	RTM_DELADDR,
40 #define RTM_DELADDR	RTM_DELADDR
41 	RTM_GETADDR,
42 #define RTM_GETADDR	RTM_GETADDR
43 
44 	RTM_NEWROUTE	= 24,
45 #define RTM_NEWROUTE	RTM_NEWROUTE
46 	RTM_DELROUTE,
47 #define RTM_DELROUTE	RTM_DELROUTE
48 	RTM_GETROUTE,
49 #define RTM_GETROUTE	RTM_GETROUTE
50 
51 	RTM_NEWNEIGH	= 28,
52 #define RTM_NEWNEIGH	RTM_NEWNEIGH
53 	RTM_DELNEIGH,
54 #define RTM_DELNEIGH	RTM_DELNEIGH
55 	RTM_GETNEIGH,
56 #define RTM_GETNEIGH	RTM_GETNEIGH
57 
58 	RTM_NEWRULE	= 32,
59 #define RTM_NEWRULE	RTM_NEWRULE
60 	RTM_DELRULE,
61 #define RTM_DELRULE	RTM_DELRULE
62 	RTM_GETRULE,
63 #define RTM_GETRULE	RTM_GETRULE
64 
65 	RTM_NEWQDISC	= 36,
66 #define RTM_NEWQDISC	RTM_NEWQDISC
67 	RTM_DELQDISC,
68 #define RTM_DELQDISC	RTM_DELQDISC
69 	RTM_GETQDISC,
70 #define RTM_GETQDISC	RTM_GETQDISC
71 
72 	RTM_NEWTCLASS	= 40,
73 #define RTM_NEWTCLASS	RTM_NEWTCLASS
74 	RTM_DELTCLASS,
75 #define RTM_DELTCLASS	RTM_DELTCLASS
76 	RTM_GETTCLASS,
77 #define RTM_GETTCLASS	RTM_GETTCLASS
78 
79 	RTM_NEWTFILTER	= 44,
80 #define RTM_NEWTFILTER	RTM_NEWTFILTER
81 	RTM_DELTFILTER,
82 #define RTM_DELTFILTER	RTM_DELTFILTER
83 	RTM_GETTFILTER,
84 #define RTM_GETTFILTER	RTM_GETTFILTER
85 
86 	RTM_NEWACTION	= 48,
87 #define RTM_NEWACTION   RTM_NEWACTION
88 	RTM_DELACTION,
89 #define RTM_DELACTION   RTM_DELACTION
90 	RTM_GETACTION,
91 #define RTM_GETACTION   RTM_GETACTION
92 
93 	RTM_NEWPREFIX	= 52,
94 #define RTM_NEWPREFIX	RTM_NEWPREFIX
95 
96 	RTM_NEWMULTICAST = 56,
97 #define RTM_NEWMULTICAST RTM_NEWMULTICAST
98 	RTM_DELMULTICAST,
99 #define RTM_DELMULTICAST RTM_DELMULTICAST
100 	RTM_GETMULTICAST,
101 #define RTM_GETMULTICAST RTM_GETMULTICAST
102 
103 	RTM_NEWANYCAST	= 60,
104 #define RTM_NEWANYCAST RTM_NEWANYCAST
105 	RTM_DELANYCAST,
106 #define RTM_DELANYCAST RTM_DELANYCAST
107 	RTM_GETANYCAST,
108 #define RTM_GETANYCAST	RTM_GETANYCAST
109 
110 	RTM_NEWNEIGHTBL	= 64,
111 #define RTM_NEWNEIGHTBL	RTM_NEWNEIGHTBL
112 	RTM_GETNEIGHTBL	= 66,
113 #define RTM_GETNEIGHTBL	RTM_GETNEIGHTBL
114 	RTM_SETNEIGHTBL,
115 #define RTM_SETNEIGHTBL	RTM_SETNEIGHTBL
116 
117 	RTM_NEWNDUSEROPT = 68,
118 #define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT
119 
120 	RTM_NEWADDRLABEL = 72,
121 #define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
122 	RTM_DELADDRLABEL,
123 #define RTM_DELADDRLABEL RTM_DELADDRLABEL
124 	RTM_GETADDRLABEL,
125 #define RTM_GETADDRLABEL RTM_GETADDRLABEL
126 
127 	RTM_GETDCB = 78,
128 #define RTM_GETDCB RTM_GETDCB
129 	RTM_SETDCB,
130 #define RTM_SETDCB RTM_SETDCB
131 
132 	RTM_NEWNETCONF = 80,
133 #define RTM_NEWNETCONF RTM_NEWNETCONF
134 	RTM_DELNETCONF,
135 #define RTM_DELNETCONF RTM_DELNETCONF
136 	RTM_GETNETCONF = 82,
137 #define RTM_GETNETCONF RTM_GETNETCONF
138 
139 	RTM_NEWMDB = 84,
140 #define RTM_NEWMDB RTM_NEWMDB
141 	RTM_DELMDB = 85,
142 #define RTM_DELMDB RTM_DELMDB
143 	RTM_GETMDB = 86,
144 #define RTM_GETMDB RTM_GETMDB
145 
146 	RTM_NEWNSID = 88,
147 #define RTM_NEWNSID RTM_NEWNSID
148 	RTM_DELNSID = 89,
149 #define RTM_DELNSID RTM_DELNSID
150 	RTM_GETNSID = 90,
151 #define RTM_GETNSID RTM_GETNSID
152 
153 	RTM_NEWSTATS = 92,
154 #define RTM_NEWSTATS RTM_NEWSTATS
155 	RTM_GETSTATS = 94,
156 #define RTM_GETSTATS RTM_GETSTATS
157 	RTM_SETSTATS,
158 #define RTM_SETSTATS RTM_SETSTATS
159 
160 	RTM_NEWCACHEREPORT = 96,
161 #define RTM_NEWCACHEREPORT RTM_NEWCACHEREPORT
162 
163 	RTM_NEWCHAIN = 100,
164 #define RTM_NEWCHAIN RTM_NEWCHAIN
165 	RTM_DELCHAIN,
166 #define RTM_DELCHAIN RTM_DELCHAIN
167 	RTM_GETCHAIN,
168 #define RTM_GETCHAIN RTM_GETCHAIN
169 
170 	RTM_NEWNEXTHOP = 104,
171 #define RTM_NEWNEXTHOP	RTM_NEWNEXTHOP
172 	RTM_DELNEXTHOP,
173 #define RTM_DELNEXTHOP	RTM_DELNEXTHOP
174 	RTM_GETNEXTHOP,
175 #define RTM_GETNEXTHOP	RTM_GETNEXTHOP
176 
177 	RTM_NEWLINKPROP = 108,
178 #define RTM_NEWLINKPROP	RTM_NEWLINKPROP
179 	RTM_DELLINKPROP,
180 #define RTM_DELLINKPROP	RTM_DELLINKPROP
181 	RTM_GETLINKPROP,
182 #define RTM_GETLINKPROP	RTM_GETLINKPROP
183 
184 	RTM_NEWVLAN = 112,
185 #define RTM_NEWVLAN	RTM_NEWVLAN
186 	RTM_DELVLAN,
187 #define RTM_DELVLAN	RTM_DELVLAN
188 	RTM_GETVLAN,
189 #define RTM_GETVLAN	RTM_GETVLAN
190 
191 	RTM_NEWNEXTHOPBUCKET = 116,
192 #define RTM_NEWNEXTHOPBUCKET	RTM_NEWNEXTHOPBUCKET
193 	RTM_DELNEXTHOPBUCKET,
194 #define RTM_DELNEXTHOPBUCKET	RTM_DELNEXTHOPBUCKET
195 	RTM_GETNEXTHOPBUCKET,
196 #define RTM_GETNEXTHOPBUCKET	RTM_GETNEXTHOPBUCKET
197 
198 	RTM_NEWTUNNEL = 120,
199 #define RTM_NEWTUNNEL	RTM_NEWTUNNEL
200 	RTM_DELTUNNEL,
201 #define RTM_DELTUNNEL	RTM_DELTUNNEL
202 	RTM_GETTUNNEL,
203 #define RTM_GETTUNNEL	RTM_GETTUNNEL
204 
205 	__RTM_MAX,
206 #define RTM_MAX		(((__RTM_MAX + 3) & ~3) - 1)
207 };
208 
209 #define RTM_NR_MSGTYPES	(RTM_MAX + 1 - RTM_BASE)
210 #define RTM_NR_FAMILIES	(RTM_NR_MSGTYPES >> 2)
211 #define RTM_FAM(cmd)	(((cmd) - RTM_BASE) >> 2)
212 
213 /*
214    Generic structure for encapsulation of optional route information.
215    It is reminiscent of sockaddr, but with sa_family replaced
216    with attribute type.
217  */
218 
219 struct rtattr {
220 	unsigned short	rta_len;
221 	unsigned short	rta_type;
222 };
223 
224 /* Macros to handle rtattributes */
225 
226 #define RTA_ALIGNTO	4U
227 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
228 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
229 			 (rta)->rta_len >= sizeof(struct rtattr) && \
230 			 (rta)->rta_len <= (len))
231 #define RTA_NEXT(rta,attrlen)	((attrlen) -= RTA_ALIGN((rta)->rta_len), \
232 				 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
233 #define RTA_LENGTH(len)	(RTA_ALIGN(sizeof(struct rtattr)) + (len))
234 #define RTA_SPACE(len)	RTA_ALIGN(RTA_LENGTH(len))
235 #define RTA_DATA(rta)   ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
236 #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
237 
238 
239 
240 
241 /******************************************************************************
242  *		Definitions used in routing table administration.
243  ****/
244 
245 struct rtmsg {
246 	unsigned char		rtm_family;
247 	unsigned char		rtm_dst_len;
248 	unsigned char		rtm_src_len;
249 	unsigned char		rtm_tos;
250 
251 	unsigned char		rtm_table;	/* Routing table id */
252 	unsigned char		rtm_protocol;	/* Routing protocol; see below	*/
253 	unsigned char		rtm_scope;	/* See below */
254 	unsigned char		rtm_type;	/* See below	*/
255 
256 	unsigned		rtm_flags;
257 };
258 
259 /* rtm_type */
260 
261 enum {
262 	RTN_UNSPEC,
263 	RTN_UNICAST,		/* Gateway or direct route	*/
264 	RTN_LOCAL,		/* Accept locally		*/
265 	RTN_BROADCAST,		/* Accept locally as broadcast,
266 				   send as broadcast */
267 	RTN_ANYCAST,		/* Accept locally as broadcast,
268 				   but send as unicast */
269 	RTN_MULTICAST,		/* Multicast route		*/
270 	RTN_BLACKHOLE,		/* Drop				*/
271 	RTN_UNREACHABLE,	/* Destination is unreachable   */
272 	RTN_PROHIBIT,		/* Administratively prohibited	*/
273 	RTN_THROW,		/* Not in this table		*/
274 	RTN_NAT,		/* Translate this address	*/
275 	RTN_XRESOLVE,		/* Use external resolver	*/
276 	__RTN_MAX
277 };
278 
279 #define RTN_MAX (__RTN_MAX - 1)
280 
281 
282 /* rtm_protocol */
283 
284 #define RTPROT_UNSPEC		0
285 #define RTPROT_REDIRECT		1	/* Route installed by ICMP redirects;
286 					   not used by current IPv4 */
287 #define RTPROT_KERNEL		2	/* Route installed by kernel		*/
288 #define RTPROT_BOOT		3	/* Route installed during boot		*/
289 #define RTPROT_STATIC		4	/* Route installed by administrator	*/
290 
291 /* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
292    they are just passed from user and back as is.
293    It will be used by hypothetical multiple routing daemons.
294    Note that protocol values should be standardized in order to
295    avoid conflicts.
296  */
297 
298 #define RTPROT_GATED		8	/* Apparently, GateD */
299 #define RTPROT_RA		9	/* RDISC/ND router advertisements */
300 #define RTPROT_MRT		10	/* Merit MRT */
301 #define RTPROT_ZEBRA		11	/* Zebra */
302 #define RTPROT_BIRD		12	/* BIRD */
303 #define RTPROT_DNROUTED		13	/* DECnet routing daemon */
304 #define RTPROT_XORP		14	/* XORP */
305 #define RTPROT_NTK		15	/* Netsukuku */
306 #define RTPROT_DHCP		16	/* DHCP client */
307 #define RTPROT_MROUTED		17	/* Multicast daemon */
308 #define RTPROT_KEEPALIVED	18	/* Keepalived daemon */
309 #define RTPROT_BABEL		42	/* Babel daemon */
310 #define RTPROT_OVN		84	/* OVN daemon */
311 #define RTPROT_OPENR		99	/* Open Routing (Open/R) Routes */
312 #define RTPROT_BGP		186	/* BGP Routes */
313 #define RTPROT_ISIS		187	/* ISIS Routes */
314 #define RTPROT_OSPF		188	/* OSPF Routes */
315 #define RTPROT_RIP		189	/* RIP Routes */
316 #define RTPROT_EIGRP		192	/* EIGRP Routes */
317 
318 /* rtm_scope
319 
320    Really it is not scope, but sort of distance to the destination.
321    NOWHERE are reserved for not existing destinations, HOST is our
322    local addresses, LINK are destinations, located on directly attached
323    link and UNIVERSE is everywhere in the Universe.
324 
325    Intermediate values are also possible f.e. interior routes
326    could be assigned a value between UNIVERSE and LINK.
327 */
328 
329 enum rt_scope_t {
330 	RT_SCOPE_UNIVERSE=0,
331 /* User defined values  */
332 	RT_SCOPE_SITE=200,
333 	RT_SCOPE_LINK=253,
334 	RT_SCOPE_HOST=254,
335 	RT_SCOPE_NOWHERE=255
336 };
337 
338 /* rtm_flags */
339 
340 #define RTM_F_NOTIFY		0x100	/* Notify user of route change	*/
341 #define RTM_F_CLONED		0x200	/* This route is cloned		*/
342 #define RTM_F_EQUALIZE		0x400	/* Multipath equalizer: NI	*/
343 #define RTM_F_PREFIX		0x800	/* Prefix addresses		*/
344 #define RTM_F_LOOKUP_TABLE	0x1000	/* set rtm_table to FIB lookup result */
345 #define RTM_F_FIB_MATCH	        0x2000	/* return full fib lookup match */
346 #define RTM_F_OFFLOAD		0x4000	/* route is offloaded */
347 #define RTM_F_TRAP		0x8000	/* route is trapping packets */
348 #define RTM_F_OFFLOAD_FAILED	0x20000000 /* route offload failed, this value
349 					    * is chosen to avoid conflicts with
350 					    * other flags defined in
351 					    * include/uapi/linux/ipv6_route.h
352 					    */
353 
354 /* Reserved table identifiers */
355 
356 enum rt_class_t {
357 	RT_TABLE_UNSPEC=0,
358 /* User defined values */
359 	RT_TABLE_COMPAT=252,
360 	RT_TABLE_DEFAULT=253,
361 	RT_TABLE_MAIN=254,
362 	RT_TABLE_LOCAL=255,
363 	RT_TABLE_MAX=0xFFFFFFFF
364 };
365 
366 
367 /* Routing message attributes */
368 
369 enum rtattr_type_t {
370 	RTA_UNSPEC,
371 	RTA_DST,
372 	RTA_SRC,
373 	RTA_IIF,
374 	RTA_OIF,
375 	RTA_GATEWAY,
376 	RTA_PRIORITY,
377 	RTA_PREFSRC,
378 	RTA_METRICS,
379 	RTA_MULTIPATH,
380 	RTA_PROTOINFO, /* no longer used */
381 	RTA_FLOW,
382 	RTA_CACHEINFO,
383 	RTA_SESSION, /* no longer used */
384 	RTA_MP_ALGO, /* no longer used */
385 	RTA_TABLE,
386 	RTA_MARK,
387 	RTA_MFC_STATS,
388 	RTA_VIA,
389 	RTA_NEWDST,
390 	RTA_PREF,
391 	RTA_ENCAP_TYPE,
392 	RTA_ENCAP,
393 	RTA_EXPIRES,
394 	RTA_PAD,
395 	RTA_UID,
396 	RTA_TTL_PROPAGATE,
397 	RTA_IP_PROTO,
398 	RTA_SPORT,
399 	RTA_DPORT,
400 	RTA_NH_ID,
401 	RTA_FLOWLABEL,
402 	__RTA_MAX
403 };
404 
405 #define RTA_MAX (__RTA_MAX - 1)
406 
407 #define RTM_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
408 #define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
409 
410 /* RTM_MULTIPATH --- array of struct rtnexthop.
411  *
412  * "struct rtnexthop" describes all necessary nexthop information,
413  * i.e. parameters of path to a destination via this nexthop.
414  *
415  * At the moment it is impossible to set different prefsrc, mtu, window
416  * and rtt for different paths from multipath.
417  */
418 
419 struct rtnexthop {
420 	unsigned short		rtnh_len;
421 	unsigned char		rtnh_flags;
422 	unsigned char		rtnh_hops;
423 	int			rtnh_ifindex;
424 };
425 
426 /* rtnh_flags */
427 
428 #define RTNH_F_DEAD		1	/* Nexthop is dead (used by multipath)	*/
429 #define RTNH_F_PERVASIVE	2	/* Do recursive gateway lookup	*/
430 #define RTNH_F_ONLINK		4	/* Gateway is forced on link	*/
431 #define RTNH_F_OFFLOAD		8	/* Nexthop is offloaded */
432 #define RTNH_F_LINKDOWN		16	/* carrier-down on nexthop */
433 #define RTNH_F_UNRESOLVED	32	/* The entry is unresolved (ipmr) */
434 #define RTNH_F_TRAP		64	/* Nexthop is trapping packets */
435 
436 #define RTNH_COMPARE_MASK	(RTNH_F_DEAD | RTNH_F_LINKDOWN | \
437 				 RTNH_F_OFFLOAD | RTNH_F_TRAP)
438 
439 /* Macros to handle hexthops */
440 
441 #define RTNH_ALIGNTO	4
442 #define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
443 #define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
444 			   ((int)(rtnh)->rtnh_len) <= (len))
445 #define RTNH_NEXT(rtnh)	((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
446 #define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
447 #define RTNH_SPACE(len)	RTNH_ALIGN(RTNH_LENGTH(len))
448 #define RTNH_DATA(rtnh)   ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
449 
450 /* RTA_VIA */
451 struct rtvia {
452 	__kernel_sa_family_t	rtvia_family;
453 	__u8			rtvia_addr[];
454 };
455 
456 /* RTM_CACHEINFO */
457 
458 struct rta_cacheinfo {
459 	__u32	rta_clntref;
460 	__u32	rta_lastuse;
461 	__s32	rta_expires;
462 	__u32	rta_error;
463 	__u32	rta_used;
464 
465 #define RTNETLINK_HAVE_PEERINFO 1
466 	__u32	rta_id;
467 	__u32	rta_ts;
468 	__u32	rta_tsage;
469 };
470 
471 /* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
472 
473 enum {
474 	RTAX_UNSPEC,
475 #define RTAX_UNSPEC RTAX_UNSPEC
476 	RTAX_LOCK,
477 #define RTAX_LOCK RTAX_LOCK
478 	RTAX_MTU,
479 #define RTAX_MTU RTAX_MTU
480 	RTAX_WINDOW,
481 #define RTAX_WINDOW RTAX_WINDOW
482 	RTAX_RTT,
483 #define RTAX_RTT RTAX_RTT
484 	RTAX_RTTVAR,
485 #define RTAX_RTTVAR RTAX_RTTVAR
486 	RTAX_SSTHRESH,
487 #define RTAX_SSTHRESH RTAX_SSTHRESH
488 	RTAX_CWND,
489 #define RTAX_CWND RTAX_CWND
490 	RTAX_ADVMSS,
491 #define RTAX_ADVMSS RTAX_ADVMSS
492 	RTAX_REORDERING,
493 #define RTAX_REORDERING RTAX_REORDERING
494 	RTAX_HOPLIMIT,
495 #define RTAX_HOPLIMIT RTAX_HOPLIMIT
496 	RTAX_INITCWND,
497 #define RTAX_INITCWND RTAX_INITCWND
498 	RTAX_FEATURES,
499 #define RTAX_FEATURES RTAX_FEATURES
500 	RTAX_RTO_MIN,
501 #define RTAX_RTO_MIN RTAX_RTO_MIN
502 	RTAX_INITRWND,
503 #define RTAX_INITRWND RTAX_INITRWND
504 	RTAX_QUICKACK,
505 #define RTAX_QUICKACK RTAX_QUICKACK
506 	RTAX_CC_ALGO,
507 #define RTAX_CC_ALGO RTAX_CC_ALGO
508 	RTAX_FASTOPEN_NO_COOKIE,
509 #define RTAX_FASTOPEN_NO_COOKIE RTAX_FASTOPEN_NO_COOKIE
510 	__RTAX_MAX
511 };
512 
513 #define RTAX_MAX (__RTAX_MAX - 1)
514 
515 #define RTAX_FEATURE_ECN		(1 << 0)
516 #define RTAX_FEATURE_SACK		(1 << 1) /* unused */
517 #define RTAX_FEATURE_TIMESTAMP		(1 << 2) /* unused */
518 #define RTAX_FEATURE_ALLFRAG		(1 << 3) /* unused */
519 #define RTAX_FEATURE_TCP_USEC_TS	(1 << 4)
520 
521 #define RTAX_FEATURE_MASK	(RTAX_FEATURE_ECN |		\
522 				 RTAX_FEATURE_SACK |		\
523 				 RTAX_FEATURE_TIMESTAMP |	\
524 				 RTAX_FEATURE_ALLFRAG |		\
525 				 RTAX_FEATURE_TCP_USEC_TS)
526 
527 struct rta_session {
528 	__u8	proto;
529 	__u8	pad1;
530 	__u16	pad2;
531 
532 	union {
533 		struct {
534 			__u16	sport;
535 			__u16	dport;
536 		} ports;
537 
538 		struct {
539 			__u8	type;
540 			__u8	code;
541 			__u16	ident;
542 		} icmpt;
543 
544 		__u32		spi;
545 	} u;
546 };
547 
548 struct rta_mfc_stats {
549 	__u64	mfcs_packets;
550 	__u64	mfcs_bytes;
551 	__u64	mfcs_wrong_if;
552 };
553 
554 /****
555  *		General form of address family dependent message.
556  ****/
557 
558 struct rtgenmsg {
559 	unsigned char		rtgen_family;
560 };
561 
562 /*****************************************************************
563  *		Link layer specific messages.
564  ****/
565 
566 /* struct ifinfomsg
567  * passes link level specific information, not dependent
568  * on network protocol.
569  */
570 
571 struct ifinfomsg {
572 	unsigned char	ifi_family;
573 	unsigned char	__ifi_pad;
574 	unsigned short	ifi_type;		/* ARPHRD_* */
575 	int		ifi_index;		/* Link index	*/
576 	unsigned	ifi_flags;		/* IFF_* flags	*/
577 	unsigned	ifi_change;		/* IFF_* change mask */
578 };
579 
580 /********************************************************************
581  *		prefix information
582  ****/
583 
584 struct prefixmsg {
585 	unsigned char	prefix_family;
586 	unsigned char	prefix_pad1;
587 	unsigned short	prefix_pad2;
588 	int		prefix_ifindex;
589 	unsigned char	prefix_type;
590 	unsigned char	prefix_len;
591 	unsigned char	prefix_flags;
592 	unsigned char	prefix_pad3;
593 };
594 
595 enum
596 {
597 	PREFIX_UNSPEC,
598 	PREFIX_ADDRESS,
599 	PREFIX_CACHEINFO,
600 	__PREFIX_MAX
601 };
602 
603 #define PREFIX_MAX	(__PREFIX_MAX - 1)
604 
605 struct prefix_cacheinfo {
606 	__u32	preferred_time;
607 	__u32	valid_time;
608 };
609 
610 
611 /*****************************************************************
612  *		Traffic control messages.
613  ****/
614 
615 struct tcmsg {
616 	unsigned char	tcm_family;
617 	unsigned char	tcm__pad1;
618 	unsigned short	tcm__pad2;
619 	int		tcm_ifindex;
620 	__u32		tcm_handle;
621 	__u32		tcm_parent;
622 /* tcm_block_index is used instead of tcm_parent
623  * in case tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK
624  */
625 #define tcm_block_index tcm_parent
626 	__u32		tcm_info;
627 };
628 
629 /* For manipulation of filters in shared block, tcm_ifindex is set to
630  * TCM_IFINDEX_MAGIC_BLOCK, and tcm_parent is aliased to tcm_block_index
631  * which is the block index.
632  */
633 #define TCM_IFINDEX_MAGIC_BLOCK (0xFFFFFFFFU)
634 
635 enum {
636 	TCA_UNSPEC,
637 	TCA_KIND,
638 	TCA_OPTIONS,
639 	TCA_STATS,
640 	TCA_XSTATS,
641 	TCA_RATE,
642 	TCA_FCNT,
643 	TCA_STATS2,
644 	TCA_STAB,
645 	TCA_PAD,
646 	TCA_DUMP_INVISIBLE,
647 	TCA_CHAIN,
648 	TCA_HW_OFFLOAD,
649 	TCA_INGRESS_BLOCK,
650 	TCA_EGRESS_BLOCK,
651 	TCA_DUMP_FLAGS,
652 	TCA_EXT_WARN_MSG,
653 	__TCA_MAX
654 };
655 
656 #define TCA_MAX (__TCA_MAX - 1)
657 
658 #define TCA_DUMP_FLAGS_TERSE (1 << 0) /* Means that in dump user gets only basic
659 				       * data necessary to identify the objects
660 				       * (handle, cookie, etc.) and stats.
661 				       */
662 
663 #define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
664 #define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
665 
666 /********************************************************************
667  *		Neighbor Discovery userland options
668  ****/
669 
670 struct nduseroptmsg {
671 	unsigned char	nduseropt_family;
672 	unsigned char	nduseropt_pad1;
673 	unsigned short	nduseropt_opts_len;	/* Total length of options */
674 	int		nduseropt_ifindex;
675 	__u8		nduseropt_icmp_type;
676 	__u8		nduseropt_icmp_code;
677 	unsigned short	nduseropt_pad2;
678 	unsigned int	nduseropt_pad3;
679 	/* Followed by one or more ND options */
680 };
681 
682 enum {
683 	NDUSEROPT_UNSPEC,
684 	NDUSEROPT_SRCADDR,
685 	__NDUSEROPT_MAX
686 };
687 
688 #define NDUSEROPT_MAX	(__NDUSEROPT_MAX - 1)
689 
690 #ifndef __KERNEL__
691 /* RTnetlink multicast groups - backwards compatibility for userspace */
692 #define RTMGRP_LINK		1
693 #define RTMGRP_NOTIFY		2
694 #define RTMGRP_NEIGH		4
695 #define RTMGRP_TC		8
696 
697 #define RTMGRP_IPV4_IFADDR	0x10
698 #define RTMGRP_IPV4_MROUTE	0x20
699 #define RTMGRP_IPV4_ROUTE	0x40
700 #define RTMGRP_IPV4_RULE	0x80
701 
702 #define RTMGRP_IPV6_IFADDR	0x100
703 #define RTMGRP_IPV6_MROUTE	0x200
704 #define RTMGRP_IPV6_ROUTE	0x400
705 #define RTMGRP_IPV6_IFINFO	0x800
706 
707 #define RTMGRP_DECnet_IFADDR    0x1000
708 #define RTMGRP_DECnet_ROUTE     0x4000
709 
710 #define RTMGRP_IPV6_PREFIX	0x20000
711 #endif
712 
713 /* RTnetlink multicast groups */
714 enum rtnetlink_groups {
715 	RTNLGRP_NONE,
716 #define RTNLGRP_NONE		RTNLGRP_NONE
717 	RTNLGRP_LINK,
718 #define RTNLGRP_LINK		RTNLGRP_LINK
719 	RTNLGRP_NOTIFY,
720 #define RTNLGRP_NOTIFY		RTNLGRP_NOTIFY
721 	RTNLGRP_NEIGH,
722 #define RTNLGRP_NEIGH		RTNLGRP_NEIGH
723 	RTNLGRP_TC,
724 #define RTNLGRP_TC		RTNLGRP_TC
725 	RTNLGRP_IPV4_IFADDR,
726 #define RTNLGRP_IPV4_IFADDR	RTNLGRP_IPV4_IFADDR
727 	RTNLGRP_IPV4_MROUTE,
728 #define	RTNLGRP_IPV4_MROUTE	RTNLGRP_IPV4_MROUTE
729 	RTNLGRP_IPV4_ROUTE,
730 #define RTNLGRP_IPV4_ROUTE	RTNLGRP_IPV4_ROUTE
731 	RTNLGRP_IPV4_RULE,
732 #define RTNLGRP_IPV4_RULE	RTNLGRP_IPV4_RULE
733 	RTNLGRP_IPV6_IFADDR,
734 #define RTNLGRP_IPV6_IFADDR	RTNLGRP_IPV6_IFADDR
735 	RTNLGRP_IPV6_MROUTE,
736 #define RTNLGRP_IPV6_MROUTE	RTNLGRP_IPV6_MROUTE
737 	RTNLGRP_IPV6_ROUTE,
738 #define RTNLGRP_IPV6_ROUTE	RTNLGRP_IPV6_ROUTE
739 	RTNLGRP_IPV6_IFINFO,
740 #define RTNLGRP_IPV6_IFINFO	RTNLGRP_IPV6_IFINFO
741 	RTNLGRP_DECnet_IFADDR,
742 #define RTNLGRP_DECnet_IFADDR	RTNLGRP_DECnet_IFADDR
743 	RTNLGRP_NOP2,
744 	RTNLGRP_DECnet_ROUTE,
745 #define RTNLGRP_DECnet_ROUTE	RTNLGRP_DECnet_ROUTE
746 	RTNLGRP_DECnet_RULE,
747 #define RTNLGRP_DECnet_RULE	RTNLGRP_DECnet_RULE
748 	RTNLGRP_NOP4,
749 	RTNLGRP_IPV6_PREFIX,
750 #define RTNLGRP_IPV6_PREFIX	RTNLGRP_IPV6_PREFIX
751 	RTNLGRP_IPV6_RULE,
752 #define RTNLGRP_IPV6_RULE	RTNLGRP_IPV6_RULE
753 	RTNLGRP_ND_USEROPT,
754 #define RTNLGRP_ND_USEROPT	RTNLGRP_ND_USEROPT
755 	RTNLGRP_PHONET_IFADDR,
756 #define RTNLGRP_PHONET_IFADDR	RTNLGRP_PHONET_IFADDR
757 	RTNLGRP_PHONET_ROUTE,
758 #define RTNLGRP_PHONET_ROUTE	RTNLGRP_PHONET_ROUTE
759 	RTNLGRP_DCB,
760 #define RTNLGRP_DCB		RTNLGRP_DCB
761 	RTNLGRP_IPV4_NETCONF,
762 #define RTNLGRP_IPV4_NETCONF	RTNLGRP_IPV4_NETCONF
763 	RTNLGRP_IPV6_NETCONF,
764 #define RTNLGRP_IPV6_NETCONF	RTNLGRP_IPV6_NETCONF
765 	RTNLGRP_MDB,
766 #define RTNLGRP_MDB		RTNLGRP_MDB
767 	RTNLGRP_MPLS_ROUTE,
768 #define RTNLGRP_MPLS_ROUTE	RTNLGRP_MPLS_ROUTE
769 	RTNLGRP_NSID,
770 #define RTNLGRP_NSID		RTNLGRP_NSID
771 	RTNLGRP_MPLS_NETCONF,
772 #define RTNLGRP_MPLS_NETCONF	RTNLGRP_MPLS_NETCONF
773 	RTNLGRP_IPV4_MROUTE_R,
774 #define RTNLGRP_IPV4_MROUTE_R	RTNLGRP_IPV4_MROUTE_R
775 	RTNLGRP_IPV6_MROUTE_R,
776 #define RTNLGRP_IPV6_MROUTE_R	RTNLGRP_IPV6_MROUTE_R
777 	RTNLGRP_NEXTHOP,
778 #define RTNLGRP_NEXTHOP		RTNLGRP_NEXTHOP
779 	RTNLGRP_BRVLAN,
780 #define RTNLGRP_BRVLAN		RTNLGRP_BRVLAN
781 	RTNLGRP_MCTP_IFADDR,
782 #define RTNLGRP_MCTP_IFADDR	RTNLGRP_MCTP_IFADDR
783 	RTNLGRP_TUNNEL,
784 #define RTNLGRP_TUNNEL		RTNLGRP_TUNNEL
785 	RTNLGRP_STATS,
786 #define RTNLGRP_STATS		RTNLGRP_STATS
787 	RTNLGRP_IPV4_MCADDR,
788 #define RTNLGRP_IPV4_MCADDR	RTNLGRP_IPV4_MCADDR
789 	RTNLGRP_IPV6_MCADDR,
790 #define RTNLGRP_IPV6_MCADDR	RTNLGRP_IPV6_MCADDR
791 	RTNLGRP_IPV6_ACADDR,
792 #define RTNLGRP_IPV6_ACADDR	RTNLGRP_IPV6_ACADDR
793 	__RTNLGRP_MAX
794 };
795 #define RTNLGRP_MAX	(__RTNLGRP_MAX - 1)
796 
797 /* TC action piece */
798 struct tcamsg {
799 	unsigned char	tca_family;
800 	unsigned char	tca__pad1;
801 	unsigned short	tca__pad2;
802 };
803 
804 enum {
805 	TCA_ROOT_UNSPEC,
806 	TCA_ROOT_TAB,
807 #define TCA_ACT_TAB TCA_ROOT_TAB
808 #define TCAA_MAX TCA_ROOT_TAB
809 	TCA_ROOT_FLAGS,
810 	TCA_ROOT_COUNT,
811 	TCA_ROOT_TIME_DELTA, /* in msecs */
812 	TCA_ROOT_EXT_WARN_MSG,
813 	__TCA_ROOT_MAX,
814 #define	TCA_ROOT_MAX (__TCA_ROOT_MAX - 1)
815 };
816 
817 #define TA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
818 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
819 /* tcamsg flags stored in attribute TCA_ROOT_FLAGS
820  *
821  * TCA_ACT_FLAG_LARGE_DUMP_ON user->kernel to request for larger than
822  * TCA_ACT_MAX_PRIO actions in a dump. All dump responses will contain the
823  * number of actions being dumped stored in for user app's consumption in
824  * TCA_ROOT_COUNT
825  *
826  * TCA_ACT_FLAG_TERSE_DUMP user->kernel to request terse (brief) dump that only
827  * includes essential action info (kind, index, etc.)
828  *
829  */
830 #define TCA_FLAG_LARGE_DUMP_ON		(1 << 0)
831 #define TCA_ACT_FLAG_LARGE_DUMP_ON	TCA_FLAG_LARGE_DUMP_ON
832 #define TCA_ACT_FLAG_TERSE_DUMP		(1 << 1)
833 
834 /* New extended info filters for IFLA_EXT_MASK */
835 #define RTEXT_FILTER_VF		(1 << 0)
836 #define RTEXT_FILTER_BRVLAN	(1 << 1)
837 #define RTEXT_FILTER_BRVLAN_COMPRESSED	(1 << 2)
838 #define	RTEXT_FILTER_SKIP_STATS	(1 << 3)
839 #define RTEXT_FILTER_MRP	(1 << 4)
840 #define RTEXT_FILTER_CFM_CONFIG	(1 << 5)
841 #define RTEXT_FILTER_CFM_STATUS	(1 << 6)
842 #define RTEXT_FILTER_MST	(1 << 7)
843 
844 /* End of information exported to user level */
845 
846 
847 
848 #endif /* _UAPI__LINUX_RTNETLINK_H */
849